Unlock Hidden Messages in Images with MATLAB: A Beginner’s Guide to Steganography 🔍

The goal of the project is to construct an introductory tutorial on the subject of steganography, mainly focused on embedding data in digital images. Steganography is a Greek word which means camouflaged piece. The word stegano infers verified and graphical infers forming. Appropriately, steganography isn’t only the specialty of hiding data yet furthermore disguising the truth of transmission of secret data. Code: clc clear all close all warning off a=imread('testimage.png'); subplot(2,2,1); imshow(a); title('Carrier Image'); x=imread('SECRET.jpg'); subplot(2,2,2); imshow(x); title('Secret Image'); [r c g]=size(a); x=imresize(x,[r c]); ra=a(:,:,1); ga=a(:,:,2); ba=a(:,:,3); rx=x(:,:,1); gx=x(:,:,2); bx=x(:,:,3); for i=1:r for j=1:c nc(i,j)= bitand(ra(i,j),254); ns(i,j)= bitand(rx(i,j),128); ds(i,j)=ns(i,j)/128; fr(i,j)=nc(i,j)+ds(i,j); end end redsteg=fr; for i=1:r for j=1:c nc(i,j)= bitand(ga(i,j),254); ns(i,j)= bitand(gx(i,j),128); ds(i,j)=ns(i,j)/128; fr(i,j)=nc(i,j)+ds(i,j); end end greensteg=fr; for i=1:r for j=1:c nc(i,j)= bitand(ba(i,j),254); ns(i,j)= bitand(bx(i,j),128); ds(i,j)=ns(i,j)/128; fr(i,j)=nc(i,j)+ds(i,j); end end bluesteg=fr; finalsteg=cat(3,redsteg,greensteg,bluesteg); redstegr=finalsteg(:,:,1); greenstegr=finalsteg(:,:,2); bluestegr=finalsteg(:,:,3); subplot(2,2,3); imshow(finalsteg); title('Stegmented Image'); for i=1:r for j=1:c nc(i,j)=bitand(redstegr(i,j),1); ms(i,j)=nc(i,j)*128; end end recoveredr=ms; for i=1:r for j=1:c nc(i,j)=bitand(greenstegr(i,j),1); ms(i,j)=nc(i,j)*128; end end recoveredg=ms; for i=1:r for j=1:c nc(i,j)=bitand(bluestegr(i,j),1); ms(i,j)=nc(i,j)*128; end end recoveredb=ms; output=cat(3,recoveredr,recoveredg,recoveredb); subplot(2,2,4); imshow(output); title('Recovered Image'); MATLAB Image processing based project. MATLAB project for Engineering Students. MATLAB Based software project Image Steganography and Cryptography. M.tech Projects Based on MATLAB. Learn Complete Machine Learning & Data Science using MATLAB: https://www.youtube.com/playlist?list=PLjfRmoYoxpNoaZmR2OTVrh-72YzLZBlJ2 Learn Digital Signal Processing using MATLAB: https://www.youtube.com/playlist?list=PLjfRmoYoxpNr3w6baU91ZM6QL0obULPig Learn Complete Image Processing & Computer Vision using MATLAB: https://www.youtube.com/playlist?list=PLjfRmoYoxpNostbIaNSpzJr06mDb6qAJ0 🙏🙏🙏🙏🙏🙏🙏🙏 YOU JUST NEED TO DO 3 THINGS to support my channel LIKE SHARE & SUBSCRIBE TO MY YOUTUBE CHANNEL